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Photonics Spectra - December 2000
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Issue Library
Features
Lasers Drive Electronics to the Cutting Edge
Lasers are no longer strangers to electronics manufacturing. But the demand for smaller components and higher throughput calls for instruments with more power, faster pulse rates and shorter...
Machine Vision Illuminates the Future of Electronics
Put simply, machine vision’s primary task is to distinguish features of interest from their background. But things are not so simple in the electronics industry, where the features of interest...
Semiconductor Metrology: Will Photonics Measure Up?
The semiconductor industry’s progress toward new materials and fabrication methods is creating opportunities for effective, fast and nondestructive photonic metrology techniques. This applies...
Optical Lithography Aims for 157 nm
Reducing the design rules of seminconductor devices enables smaller components and represents the most economical means for the industry to reduce costs while improving device performance. This...
Tech Pulse
Alcatel Breaks 5-Tb/s Transmission
Alcatel of Paris has demonstrated 5.12-Tb/s transmission over 300 km of its TeraLight optical fiber. Such a transmission capacity would enable more than 100 million voice calls or 640,000 high-speed Internet connections to be carried over a single fiber. The company’s researchers employed its 40-Gb/s dense wavelength division multiplexing systems in the unidirectional test, which reached...
Dispersion Increases Fiber Capacity
HOLMDEL, N.J. -- A researcher at Lucent Technologies Inc.’s Bell Labs has taken a working solution to a wireless communications problem and applied it to optical communication over multimode...
Laser Destroys Multiple Rockets
TRW Inc.’s Space & Electronics Group of Redondo Beach, Calif., has reported that the Tacti-cal High Energy Laser/ Advanced Concept Technology Demonstrator successfully completed a series of...
Dielectric Waveguide Betters Fiber
CAMBRIDGE, Mass. -- Building on its wide-bandwidth, wide-angle, high-reflectivity dielectric mirror, a research team at Massachusetts Institute of Technology has designed a dielectric waveguide with...
Lidar to Track Earth Atmosphere
BALTIMORE -- Within the next five to seven years, NASA scientists and engineers from Johns Hopkins University plan to launch a next-generation fiber optic laser system to monitor the Earth’s...
Camera’s Exposures Always Correct
NEW YORK -- The human eyeball can handle an enormous range of brightness levels. It can look at a darkly tanned person sitting on the brilliant white sand of a beach in glaring midday sunlight and...
Flexible Laser Produced
MUNICH, Germany -- Scientists from Ludwig Maximilians Universi-tät, the Fraunhofer Institut für Solare Energiesysteme in Freiburg and the Max Planck Institut für Polymerforschung in...
Holography Monitors Microscopic Marine Life
ABERDEEN, UK -- Scientists estimate that 80 percent of the oxygen in the atmosphere is produced by phytoplankton, ocean-dwelling one-celled photosynthesizing organisms. It seems understandable,...
Lithographers Suggest Solutions to Smaller Features
Semiconductor manufacturers should focus on the commercialization of extreme-ultraviolet and electron-projection lithographic techniques, recommended lithographers at the Next Generation Lithography...
Measuring the Ultrasmall
HAMBURG, Germany -- Without measurement standards, our descriptions of the physical world would have no meaning. An essential standard defines atomic-scale dimensions, which are necessary to...
MEMS-Based Gas Sensor Under Development
Ion Optics Inc. of Waltham, Mass., has announced that it is developing a chip-based IR gas sensor that will be manufactured using microelectromechanical systems (MEMS) technology. The company expects...
Microdisc LEDs Boast Higher Efficiencies
Physicists at Kansas State University in Manhattan have developed LEDs with a novel architecture that display emission efficiencies greater than conventional devices. The interconnected microdisc...
Microstepping Improves Ronchigrams
A team from the Universitat Politècnica de Catalunya in Terrassa, Spain, has developed a Ronchi test that increases the number of sampling points in a ronchigram and offers higher accuracy...
Simple Sensor Detects Nerve Gas
SAN DIEGO -- A laser-based nerve gas sensor under development illustrates that we should not underestimate the power of the commonplace. First cobbled together for $24 from spare parts from CD...
Fiber Probe Enhances Plasma Spectroscopy
MUNICH, Germany -- Monitoring the exhaust plumes from industrial activities such as power generation may soon be faster and more accurate. Researchers at Munich Technical University are testing a...
Laser Sensors Measure Force
KASSEL, Germany -- When it comes to measuring force, the more precise the measurement, the better. Just ask anyone who makes a living designing high-precision acceleration sensors for aircraft...
Researchers Grow Single-Crystal, 1.55µm VCSELs
Researchers at the University of California in Santa Barbara have produced 1.55-µm vertical-cavity surface-emitting lasers (VCSELs) for telecommunications applications as a single crystal by...
High-Speed Video Exposes Snapping Shrimp
Scientists from the University of Twente in Enschede, the Netherlands, and their colleagues in Germany have solved the mystery of how snapping shrimp make their distinctive noises. Biologists had...
Photonics Finds Solvents in Water
ATHENS, Ohio -- With the list of Superfund sites growing almost daily, the need for a reliable technique to test water samples on-site also increases. Researchers at Ohio University believe that...
Excimer Laser Processes Ceramic Spinnerettes
MÜNSTER, Germany -- A new procedure that employs an excimer laser emitting at 248 nm shows promise for the fabrication of ceramic spinnerettes. Spinnerettes are small nozzles typically made of a...
Spooky Photons May Beat Diffraction
PASADENA, Calif. -- Light is fundamentally a quantum mechanical entity, but most of today’s photonics technology does not depend upon this quantum nature and, in fact, ignores it altogether....
Microscopy Probes Ultrafast Dynamics
GÖTTINGEN, Germany -- Researchers at the Max Planck Institute for Biophysical Chemistry have introduced a microscope that images molecular dynamics at a temporal resolution of 380 fs or faster....
UV VCSEL Produced
Researchers at Sandia National Laboratories in Albuquerque, N.M., and Brown University in Providence, R.I., have developed a 383-nm vertical-cavity surface-emitting laser (VCSEL). The InGaN device,...
Web-footed Grating Reduces Loss
IBARAKI, Japan -- A novel arrayed-waveguide grating developed at NTT Photonics Laboratories promises lower insertion losses and crosstalk for filters, multiplexers and demultiplexers in dense...
X-Ray Technique Probes Thin-Film Layers
Surface charge on poorly conducting thin films, a result of the emission of photoelectrons, had been considered an obstacle to measuring such samples, but researchers at Weizmann Institute of Science...
light speed
Automakers Laud Lasers
Lasers will help make cars better, lighter and easier to manufacture, automotive industry leaders predicted during the plenary session of the Laser Institute of America’s International...
Optical-Fiber-Making Capacity Almost Doubling
Major optical fiber manufacturers have invested $2.6 billion in plant expansions that will nearly double the capacity available in 1999, according to a study by KMI Corp. titled "Worldwide Markets...
Cree to US Courts: Stop Nichia’s Blue Laser Sales
DURHAM, N.C. -- Blue-violet laser diodes will effectively disappear from the US if Cree Inc. and North Carolina State University prevail in a lawsuit against Nichia Corp. and its US subsidiary. Cree...
UK Facility Focuses on Display Technology
Data display and human-display interaction will be the foci of a £1.2 million electronic, photonic and information control center at the University of Abertay Dundee in the UK. Dubbed Epicentre,...
New ’Photonics’ Grads Coming
The University of Pittsburgh is offering a Photonics Certificate Program for undergraduates majoring in chemistry, physics or electrical engineering. Students may enroll at the end of their sophomore...
Photonics Moves at Light Speed
BOSTON -- The future of light-based technologies is bright. That was the consensus at Boston University’s fourth annual symposium on emerging business opportunities in photonics, held in early...
Edmund Buys Embattled Plummer
BARRINGTON, N.J. -- Edmund Optics Inc. has agreed to acquire Plummer Precision Optics Inc., apparently as part of a settlement in Plummer’s federal "whistle-blower" litigation. Plummer expands...
New Bounty Hunters Stalk Paper Prey
BOSTON -- Can you recall hearing or seeing a description of an automated inspection system before Sept. 15, 1993? Somebody is willing to pay $10,000 for information that could invalidate Jerome H....
Optics Goes to Washington
The Optical Society of America and the Materials Research Society have opened their 2001-2002 Congressional Science and Engineering Fellow Program, with an application deadline of Jan. 12, 2001. The...
Exfo, Burleigh Waves Meet
Exfo said it will retain Burleigh’s 110 employees and its facilities in the strategic optical corridor near Rochester, N.Y. Burleigh’s president, Dave Farrell, noted that the companies...
Accent on Applications
CCD Sets Sights On Airborne Laser Program
The threat from nuclear missiles has diminished since the end of the Cold War, but short- and medium-range tactical missile technology has proliferated. This new danger has fueled support for the US...
Camera Smooths Flatness Measurements
Flatness is an important geometric tolerance for many engineering designs. For years, automotive designers have specified flatness per inch for manufactured parts, but few techniques could provide...
Stable Nd:YAG Personalizes Documents
One simple and effective method to protect a document against forgery is to alter its integral substance rather than add to it. Forging documents is much easier when you can remove or replace...
Spectrometer Goes the Distance Inside Nuclear Reactor
Like most industries, the nuclear power sector relies on materials analysis for process control and plant monitoring. There are, however, many cases in which the material of interest or its location...
Presstime Bulletin
New Focus Plans Two Acquisitions
New Focus Inc. of Santa Clara, Calif., has announced plans to acquire JCA Technology Inc. of Camarillo, Calif., for $600 million. Under the agreement, which is expected to close this year, New Focus would purchase JCA for $575 million in common stock and $25 million in cash. JCA manufactures data drivers, and clock and power amplifiers, and provides custom solutions for optical communications...
Cree’s Blue Lasers Push On
Researchers at Durham, N.C.-based Cree Inc. have demonstrated more than 100 hours of 1- to 3-mW continuous-wave (CW) output from its blue semiconductor laser based on silicon carbide. The devices...
Spectroscopy Probes Nanostructures
A team from North Carolina State University in Raleigh and St. Lawrence University in Canton, N.Y., has developed a spectroscopy technique that may enable researchers to better understand matter at...
Smoothing May Improve Laser Fusion
Scientists at the University of Rochester in New York reported at the annual meeting of the American Physical Society’s Division of Plasma Physics the results of their experiments with a beam...
TRW to Purchase Laser Firm
TRW Inc. of Cleveland has announced that it will purchase Cutting Edge Optronics Inc. and its laser diode operation in Industrial Microphotonics Co., both in St. Charles, Mo., for $19 million in cash...
Products
POLARIZATION CONTROL
The PolaRite II is a fiber-squeezer-based polarization controller from General Photonics Corp. The company says it has no insertion loss, backreflection or polarization-dependent loss. Its response...
General Photonics Corp.
RADIATION MODE SUPPRESSION FIBER
An optical fiber for the mass production of fiber Bragg gratings has been released by StockerYale. The PS-RMS-50 is a single-mode fiber with a core and cladding that are photosensitive to UV...
ProPhotonix Ltd.
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FO COMBINER/SPLITTER
Micro-Optics Inc. has introduced an in-line fiber optic polarization combiner/splitter for 1480 and 1550 nm and other wavelengths for pump-power combining and other applications. Housed in a compact...
Micro-Optics Inc.
HIGH-RESOLUTION CAMERA
A high-resolution color camera has been developed by The Imaging Source Europe GmbH for technical measuring applications, visualization and surveillance. The DFK 50H13 may be used with the company's...
The Imaging Source LLC
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MINI MODULATOR
A miniature electro-optic modulator developed by Linos Photonics GmbH allows full analog modulation of lasers with 400- to 700-nm wavelengths. The device, which maintains a Gaussian beam profile,...
Qioptiq Photonics GmbH & Co. KG
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BLUE DIODE LASER
Engineering evaluation units of Micro Laser Systems' high-power blue diode lasers are now available. They are suitable for scientific use or for printing and DVD applications. The circular beam is 6...
Micro Laser Systems Inc.
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INDUSTRIAL LASER
Rofin-Sinar Inc. has released the RF 040 CO2 industrial processing laser with guaranteed 4-kW output and a typical range of 400 to 4400 W. Its generator is configured with modular components, and the...
Rofin-Sinar Inc.
LASER DIODE MODULE
Lumex Inc. has introduced two Bellcore-compliant 1310-nm laser diode modules for communications applications. The devices can operate at high ambient temperatures without a thermoelectric cooler....
Lumex
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POWER AMPLIFIER
Coherent Photonics Group, Laser Div., has developed an all-solid-state, high-power amplification system. The device comprises the company's RegA 9000 regenerative amplifier and a Vitesse Ti:sapphire...
Coherent Inc.
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THERMALl-CURE EPOXY
The Emcast 4180 single-component, thermal-cure epoxy system for electronic assembly has been added to Electronic Materials Inc.'s line. It has low viscosity and a fast cure schedule at elevated...
Electronic Materials Inc.
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OBJECTIVE LENSES
Objective lenses for gobos and slide projection lighting fixtures have been introduced by Docter Optics Inc. The lenses are available in three-, four- or six-element designs with fixed or variable...
Docter Optics Inc.
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POWER SUPPLIES
A series of high-voltage power supplies has been unveiled by Emco High Voltage Corp. The CA line features ripple at 2 ppm peak to peak, stability of 0.001%/h and a temperature coefficient of less...
XP Power
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FIBER OPTIC ALIGNMENT
Piezosystem jena has developed the Fapos 2/2 positioning system for fiber optic alignment. It comprises a manually operated three-axis position stage and a piezostage with subnanometer resolution for...
piezosystem jena GmbH
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AUTOMATED INSPECTION
Edmund Industrial Optics has released the Eyebot automatic inspector for machine vision systems. It features both an operational mode that looks for the appearance and disappearance of shapes, and a...
Edmund Optics Inc.
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SAMPLE MONITORING
The T300-RT-UV-VIS dip probe from Ocean Optics Inc. measures in situ UV-VIS-shortwave NIR absorbance and the transmission of chemicals, pharmaceuticals and other solutions. The probe can be embedded...
Ocean Optics - Part of Ocean Insight
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SPECTRUM ANALYZERS
Miniature fiber optic spectrum analyzers have been introduced by StellarNet Inc. They connect directly to a PC's enhanced parallel printer port and measure frequency and power output from emission...
StellarNet Inc.
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STEREOMICROSCOPE
Carl Zeiss Inc. has unveiled the Stemi DV4 stereomicroscope. This double-lens vario with a zoom factor of four comes with transmitted and reflected light illumination and provides high contrast...
Carl Zeiss Microscopy LLC
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UV RADIOMETER
The ELC-300 autoranging radiometer from Electro-Lite Corp. measures the UV performance of spot-cure and production-process systems. This optical sensing device measures irradiance in the 300- to...
Electro-Lite Corp.
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